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9 August, 03:08

The length of a rectangle is 3 times the width. The perimeter of the rectangle is 56 feet. Find the length of the rectangle.

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  1. 9 August, 03:20
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    length = 21

    Step-by-step explanation:

    P = 2L + 2W, L = 3W

    P = 2 (3W) + 2W = 56

    8W = 56

    W = 7

    L = 3W = 3 (7) = 21
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